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3-12
Understanding EPSON TWAIN Features
Note:
❏
Dropout is available only when Pixel Depth is set to
14-bit Gray
,
8-bit Gray
, or
Black & White
.
❏
Depending on the image you scan, you may need to adjust the
Threshold setting in the Image Controls dialog box to enable this
feature.
B/W Option:
Select from:
Text Enhancement Technology
,
Auto Area Segmentation
,
or
None
.
Text Enhancement Technology (TET)
To improve recognition accuracy during OCR (Optical Character
Recognition) scanning, select this option. This function eliminates
the document background from scans.
Auto Area Segmentation (AAS)
To make grayscale images clearer and text recognition more
accurate, select this option. This function separates text from
graphics.
Note:
❏
B/W Option is available only when Pixel Depth is set to
Black &
White
.
❏
When you need neither TET nor AAS, select
None
.
Halftone:
Select a halftone or dither setting to reproduce images using
special dot patterns:
Summary of Contents for Series Perfection 1240U Series
Page 2: ... 2 ...
Page 8: ... 8 ...
Page 30: ...1 20 Using the Buttons ...
Page 50: ...2 20 Scanning Basics High Contrast Increases the contrast of dull images Open Shadow ...
Page 60: ...2 30 Scanning Basics ...
Page 94: ...3 34 Understanding EPSON TWAIN Features ...
Page 102: ...4 8 Calibrating Your System ...
Page 146: ...6 30 Maintenance and Troubleshooting ...
Page 160: ...A 14 Technical Specifications ...
Page 161: ...Contacting Customer Support B 1 Appendix B Contacting Customer Support Overview B 2 ...